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index.js
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'use strict';
var getLinkByNodes = require('../../lib/common').getLinkByNodes;
var getNodesByName = require('../../lib/common').getNodesByName;
var getNodesPublicInfo = require('../../lib/common').getNodesPublicInfo;
var fs = require('fs');
var exec = require('child_process').exec;
module.exports = function (router) {
router.get('/ping/:nodeName', function(req, res) {
var nodeName = req.params.nodeName;
var interval = req.query.interval;
getNodesByName([ nodeName ]).then(function(nodes) {
var node = nodes[0];
var a = '/var/lib/collectd/solicom5/ping/ping-' + node.mainip + '.rrd';
if (!fs.existsSync(a)) {
res.send(404);
return;
}
var start = -86400;
var step = 1200;
if (interval === 'weekly') {
start = -604800;
step = 3600*2;
} else if (interval === 'monthly') {
start = -18144000;
step = 3600*24;
} else if (interval === 'year') {
start = -31536000;
step = 3600*24*7;
}
var command = '/usr/bin/rrdtool graph - --imgformat=PNG ' +
'--start=' + start + ' --end=now ' +
'--title="' + nodeName + ' - Ping latency" ' +
'--step=' + step + ' --base=1000 --height=140 --width=480 ' +
'--alt-autoscale-max --lower-limit="0" ' +
'--vertical-label="bits per second" --font TITLE:10: ' +
'--font AXIS:7: --font LEGEND:8: --font UNIT:7: ' +
'DEF:"A0"="' + a + '":value:AVERAGE AREA:A0#FF000022 LINE2:A0#FF0000:"Ping to host"';
exec(command, { encoding: 'binary', maxBuffer: 5000*1024 }, function(error, stdout, stderr) {
res.type('png');
res.send(new Buffer(stdout, 'binary'));
});
});
});
router.get('/users/:nodeName', function(req, res) {
var nodeName = req.params.nodeName;
var interval = req.query.interval;
getNodesByName([ nodeName ]).then(function(nodes) {
var a = '/var/lib/collectd/' + nodeName + '/node/connected_users.rrd';
if (!fs.existsSync(a)) {
res.send(404);
return;
}
var start = -86400;
var step = 1200;
if (interval === 'weekly') {
start = -604800;
step = 3600*2;
} else if (interval === 'monthly') {
start = -18144000;
step = 3600*24;
} else if (interval === 'year') {
start = -31536000;
step = 3600*24*7;
}
var command = '/usr/bin/rrdtool graph - --imgformat=PNG ' +
'--start=' + start + ' --end=now ' +
'--title="' + nodeName + ' - Connected users" ' +
'--step=' + step + ' --base=1000 --height=140 --width=480 ' +
'--alt-autoscale-max --lower-limit="0" ' +
'--vertical-label="bits per second" --font TITLE:10: ' +
'--font AXIS:7: --font LEGEND:8: --font UNIT:7: ' +
'DEF:a="' + a + '":"good":MAX:step=1200 ' +
'DEF:b="' + a + '":"bad":MAX:step=1200 ' +
'AREA:b#EA644A:"Connected users (bad signal)": ' +
'LINE:b#CC3118 ' +
'GPRINT:b:LAST:"Last %.0lf" ' +
'GPRINT:b:MAX:"Max %.0lf" ' +
'GPRINT:b:MIN:"Min %.0lf\\n" ' +
'AREA:a#54EC48:"Connected users (good signal)":STACK ' +
'GPRINT:a:LAST:"Last %.0lf" ' +
'GPRINT:a:MAX:"Max %.0lf" ' +
'GPRINT:a:MIN:"Min %.0lf\\n"';
exec(command, { encoding: 'binary', maxBuffer: 5000*1024 }, function(error, stdout, stderr) {
res.type('png');
res.send(new Buffer(stdout, 'binary'));
});
});
});
var getStartAndStep = function(interval) {
var start = -86400;
var step = 60;
if (interval === 'weekly') {
start = -604800;
step = 3600*2;
} else if (interval === 'monthly') {
start = -18144000;
step = 3600*24;
} else if (interval === 'year') {
start = -31536000;
step = 3600*24*7;
}
return {
start: start,
step: step
};
};
var getRRDFiles = function(n1, n2, link) {
var a = '/var/lib/collectd/' + n1.name + '/links/bandwidth-' + n2.name + '.rrd',
b,
iface;
if (fs.existsSync(a)) {
if (n1._id.toString() === link.nodes[0].id) {
iface = link.nodes[0].iface;
} else {
iface = link.nodes[1].iface;
}
iface = iface.replace(/:[0-9]+\./, '.');
b = '/var/lib/collectd/' + n1.name + '/snmp/if_octets-' + iface + '.rrd';
} else {
a = '/var/lib/collectd/' + n2.name + '/links/bandwidth-' + n1.name + '.rrd';
if (n2._id.toString() === link.nodes[1].id) {
iface = link.nodes[1].iface;
} else {
iface = link.nodes[0].iface;
}
iface = iface.replace(/:[0-9]+/, '');
b = '/var/lib/collectd/' + n2.name + '/snmp/if_octets-' + iface + '.rrd';
}
return {
a: a,
b: b
};
};
router.get('/bandwidth/:n1/:n2', function (req, res) {
var nodeName1 = req.params.n1;
var nodeName2 = req.params.n2;
var interval = req.query.interval;
getNodesByName([nodeName1, nodeName2]).then(function(nodes) {
if (nodes.length !== 2) {
throw 'Link nodes not found';
}
var n1 = nodes[0],
n2 = nodes[1];
getLinkByNodes(nodes).then(function(link) {
if (!link) {
throw 'Link not found';
}
var rrdFiles = getRRDFiles(n1, n2, link),
a = rrdFiles.a,
b = rrdFiles.b;
a = a.replace(':3.rrd', '.rrd');
b = b.replace(':3.rrd', '.rrd');
if (!fs.existsSync(a) || !fs.existsSync(b)) {
res.send(404);
return;
}
var monitoring = getStartAndStep(interval),
start = monitoring.start,
step = monitoring.step;
var command = '/usr/bin/rrdtool graph - --imgformat=PNG ' +
'--start=' + start + ' --end=now ' +
'--title="' + n1.name + '- ' + n2.name + ' - Bandwidth meter" ' +
'--step=' + step + ' --base=1000 --height=140 --width=480 ' +
'--alt-autoscale-max --lower-limit="0" ' +
'--vertical-label="bits per second" --font TITLE:10: ' +
'--font AXIS:7: --font LEGEND:8: --font UNIT:7: ' +
'DEF:a="' + a + '":"rx":AVERAGE:step=1200 ' +
'DEF:b="' + a + '":"tx":AVERAGE:step=1200 ' +
'DEF:c="' + b + '":"rx":AVERAGE:step=60 ' +
'DEF:d="' + b + '":"tx":AVERAGE:step=60 ' +
'CDEF:cdefb=b,-1,* CDEF:cinbits=c,8,* ' +
'CDEF:cdeff=d,8,* CDEF:dinbits=cdeff,-1,* ' +
'AREA:a#4444FFFF:"Bandwidth TX" ' +
'LINE:a#000000FF GPRINT:a:LAST:"Last%8.2lf %s" ' +
'GPRINT:a:AVERAGE:"Avg%8.2lf %s" ' +
'GPRINT:a:MAX:"Max%8.2lf %s" GPRINT:a:MIN:"Min%8.2lf %s\\n" ' +
'AREA:cinbits#FF0000FF:"Traffic TX" LINE:cinbits#000000FF ' +
'GPRINT:cinbits:LAST:"Last%8.2lf %s" GPRINT:cinbits:AVERAGE:"Avg%8.2lf %s" ' +
'GPRINT:cinbits:MAX:"Max%8.2lf %s" GPRINT:cinbits:MIN:"Min%8.2lf %s\\n" ' +
'AREA:cdefb#44AAFFFF:"Bandwidth RX" LINE:cdefb#110000FF ' +
'GPRINT:b:LAST:"Last%8.2lf %s" GPRINT:b:AVERAGE:"Avg%8.2lf %s" ' +
'GPRINT:b:MAX:"Max%8.2lf %s" GPRINT:b:MIN:"Min%8.2lf %s\\n" ' +
'AREA:dinbits#FF8800FF:"Traffic RX" LINE:dinbits#000000FF ' +
'GPRINT:cdeff:LAST:"Last%8.2lf %s" GPRINT:cdeff:AVERAGE:"Avg%8.2lf %s" ' +
'GPRINT:cdeff:MAX:"Max%8.2lf %s" GPRINT:cdeff:MIN:"Min%8.2lf %s\\n"';
exec(command, { encoding: 'binary', maxBuffer: 5000*1024 }, function(error, stdout, stderr) {
res.type('png');
res.send(new Buffer(stdout, 'binary'));
});
});
});
});
};